WeatherNext 3: hourly global forecasts at 5 km resolution
Google DeepMind and Google Research launched WeatherNext 3, a global weather model that re-initializes every hour and ingests live geostationary satellite mosaics directly; Google calls it the most accurate global weather model to date, citing independent live evaluations by Brightband. It resolves temperature and moisture at 5 km, other surface variables at 10 km and atmospheric variables at 25 km — roughly five times sharper than WeatherNext 2's 25 km, six-hourly grid — and adds 100-meter wind, cloud cover and radiation for renewable-energy planning. It begins powering Google Search, the Gemini app, Maps, the Google Maps Platform Weather API and Earth Engine today, with up to 50% more accurate precipitation forecasts a day or more out; the data is queryable in BigQuery and Earth Engine or downloadable from Cloud Storage.